It Must Have Been Love is a song which was included on the soundtrack to the movie "Pretty Woman" but it also was released as a single and in the summer of 1990 it became Roxette's third U.S. number one hit.

The song was originally released as a Christmas single with the title It Must Have Been Love (Christmas For The Broken Hearted) but a new remixed version (with new lyrics) of the song was included on the soundtrack and therefore the title was changed.

Both the movie and the soundtrack became a huge success and thanks to Roxette's song the album sold in excess of nine million copies worldwide.

When the movie had its TV premiere in the U.K. in 1993 the single was re-released and once again the song became a hit. The song 2 Cinnamon Street was included on the CDS of the re-release and this is the same version of the song as the one that is included on the European release of the soundtrack to the movie "Super Mario Bros.".